Steam bundles its own runtime for games (it can be configured to use system libs instead, but that's not the default). Games will often also ship with copies of

Steam bundles its own runtime for games (it can be configured to use system libs instead, but that's not the default). Games will often also ship with copies of additional libraries not in steam's runtime. I bet that the underlying distribution doesn't matter much at all, and since this console is meant to also be a desktop (or living room) PC, might as well ship with a distribution that's good for that purpose. Arch makes more sense for desktops than Ubuntu, and has for a while tbh.